Iterations of FB-MSDSD and Turbo Codes over the Correlated Flat Fading Channel
Summary :
Over a correlated flat fading channel, multiple-symbol differential detection can enhance the performance of coded differential phase shift keying (DPSK) systems but with exponential complexity. For iterative decoding schemes, the soft-input soft-output (SISO) multiple-symbol differential sphere decoding (MSDSD) can offer suboptimal performance and its complexity is quadratic with detection length. To further reduce the complexity, this paper proposes a Forward/Backward MSDSD (FB-MSDSD) for coded DPSK systems. The key idea is that the detection interval is split into two subintervals which are processed in the forward and backward directions respectively. Simulation results show that the proposed scheme has almost the same performance and lower complexity when compared with the SISO-MSDSD scheme with the same detection length.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.12 pp.2780-2786
- Publication Date
- 2011/12/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E94.A.2780
- Type of Manuscript
- Special Section LETTER (Special Section on Wideband Systems)
- Category
Authors
Keyword
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Chien-Sheng CHEN, Ching-Chi LO, "Iterations of FB-MSDSD and Turbo Codes over the Correlated Flat Fading Channel" in IEICE TRANSACTIONS on Fundamentals,
vol. E94-A, no. 12, pp. 2780-2786, December 2011, doi: 10.1587/transfun.E94.A.2780.
Abstract: Over a correlated flat fading channel, multiple-symbol differential detection can enhance the performance of coded differential phase shift keying (DPSK) systems but with exponential complexity. For iterative decoding schemes, the soft-input soft-output (SISO) multiple-symbol differential sphere decoding (MSDSD) can offer suboptimal performance and its complexity is quadratic with detection length. To further reduce the complexity, this paper proposes a Forward/Backward MSDSD (FB-MSDSD) for coded DPSK systems. The key idea is that the detection interval is split into two subintervals which are processed in the forward and backward directions respectively. Simulation results show that the proposed scheme has almost the same performance and lower complexity when compared with the SISO-MSDSD scheme with the same detection length.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E94.A.2780/_p
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@ARTICLE{e94-a_12_2780,
author={Chien-Sheng CHEN, Ching-Chi LO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Iterations of FB-MSDSD and Turbo Codes over the Correlated Flat Fading Channel},
year={2011},
volume={E94-A},
number={12},
pages={2780-2786},
abstract={Over a correlated flat fading channel, multiple-symbol differential detection can enhance the performance of coded differential phase shift keying (DPSK) systems but with exponential complexity. For iterative decoding schemes, the soft-input soft-output (SISO) multiple-symbol differential sphere decoding (MSDSD) can offer suboptimal performance and its complexity is quadratic with detection length. To further reduce the complexity, this paper proposes a Forward/Backward MSDSD (FB-MSDSD) for coded DPSK systems. The key idea is that the detection interval is split into two subintervals which are processed in the forward and backward directions respectively. Simulation results show that the proposed scheme has almost the same performance and lower complexity when compared with the SISO-MSDSD scheme with the same detection length.},
keywords={},
doi={10.1587/transfun.E94.A.2780},
ISSN={1745-1337},
month={December},}
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TY - JOUR
TI - Iterations of FB-MSDSD and Turbo Codes over the Correlated Flat Fading Channel
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2780
EP - 2786
AU - Chien-Sheng CHEN
AU - Ching-Chi LO
PY - 2011
DO - 10.1587/transfun.E94.A.2780
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E94-A
IS - 12
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - December 2011
AB - Over a correlated flat fading channel, multiple-symbol differential detection can enhance the performance of coded differential phase shift keying (DPSK) systems but with exponential complexity. For iterative decoding schemes, the soft-input soft-output (SISO) multiple-symbol differential sphere decoding (MSDSD) can offer suboptimal performance and its complexity is quadratic with detection length. To further reduce the complexity, this paper proposes a Forward/Backward MSDSD (FB-MSDSD) for coded DPSK systems. The key idea is that the detection interval is split into two subintervals which are processed in the forward and backward directions respectively. Simulation results show that the proposed scheme has almost the same performance and lower complexity when compared with the SISO-MSDSD scheme with the same detection length.
ER -
English
